baber/WOPTO huggingface dataset:
Patent GB-1355940-A (GB)
Title: Moisture analysis system
IPC: G01N27/22
Filed: 1972-02-24
Abstract: 1355940 Moisture analysis systems ITT INDUSTRIES Inc 24 Feb 1972 [1 March 1971] 8544/72 Heading G1N In a system for determining the moisture content of a baked product the capacitance of the product is compared with a reference in a comparator the output of which is compensated by a signal representative of the temperature of the product. The baked products are positioned singly on a fringe field electrode 11 and the capacitance compared with a standard set by tuner capacitors 14a-14j, selected in accordance with the type of product being monitored, in comparator 12. The output of the comparator then has algebraically added thereto an amplified, at 16, signal from pyrometer 15 which measures the temperature of the product simultaneously with the capacitance measurement to thereby compensate the capacitance measurement for temperature variations of the product. The compensating circuit 16 is arranged so that for a given temperature the compensating signal on 26a is zero whereas it is negative if the temperature is less or positive if it is above the given temperature. The output from the comparator 12 after compensation and amplification is fed through a gain attenuator 13a-j set to give a full deflection on meter 12a for the product being tested. In addition a limit selector 18, Fig. 2a (not shown) including low and high limit amplifiers and a reject amplifier indicates whether the measurement is within the required limits and two counters 18a count the total number of tests and the total number of rejects. Warning alarms are energized when the number of rejects reach a predetermined number and after a predetermined number of tests. The sampling and testing process are under the control of a test sequence circuit which includes a number of delay circuits Figs. 3-3c (not shown).
Patent GB-540062-A (GB)
Title: Process of manufacturing sodium cyanide
IPC: C01C3/10
Filed: 1940-05-13
Abstract: 540,062. Sodium cyanide. SOC. ANON. LA FLORIDIENNE J. BUTTGENBACH & CO. May 13, 1940, No. 8586. Convention date, June 16, 1939. [Class 1 (ii)] Crystals of sodium cyanide NaCN.2H 2 O are obtained by treating sodium hydroxide monohydrate in crystalline form with hydrocyanic acid in the gaseous or liquefied state while cooling and stirring. A small amount of caustic soda in solution may also be present. The cyanide crystals may be dehydrated by heating in vacuo to 40-70‹ C.
Patent GB-1034783-A (GB)
Title: A perhalocyclohexene derivative and process for its preparation
IPC: C08J5/12
Filed: 1965-03-01
Abstract: The invention comprises 1-chloro-2-methoxy-octafluorocyclohex-1-ene. It may be prepared by reacting 1,2-dichloro-octafluorocyclohex-1-ene with an alkali metal methoxide in a polar solvent.  The reaction is preferably carried out in methanol solution at a temperature in the range 0-90 DEG  C.ALSO:1 - Chloro - 2 - methoxy - octafluorocyclohex-1-ene is used as a solvent for a copolymer of trifluorochloroethylene and vinylidene fluoride.
Patent GB-119425-A (GB)
Title: Improvements in and relating to Railway Rail Joints.
Inventor: GODDIN HUGH TALBOT
IPC: E01B11/10
Filed: 1918-05-28
Abstract: 119,425. Goddin, H. T. May 28, 1918. Rail joints, bridge. -A rail joint of the bridge type is formed of two fish-plates having curved enlarged portions situated under the joint and between the sleepers, the end portions of the fishplates extending over the sleepers and being secured by spikes. Fig. 3 shows a section through the enlarged portion. The rail 1 is supported on one fish-plate 3 which acts as a chair and, besides engaging one side of the rail by the part 7, extends under and beyond the rail having the central thickened portion 10. The second fish-plate engages by a groove with the extending edge 15 of the first fishplate, and has a correspondingly curved and enlarged central portion 14. The fish-plates are held to the rail by bolts and are held to the sleepers by spikes, the heads of which engage in recesses in the fish-plates, and in some cases the spike shanks engage in recesses in the edge of the fishplate.
Patent GB-1002581-A (GB)
Title: Absorbers for electromagnetic radiation of very high and higher frequencies
IPC: H01Q17/00
Filed: 1962-03-07
Abstract: 1,002,581. Laminates. E. B. MCMILLAN. March 7, 1962, No. 8862/62. Heading B5N. [Also in Division H4] A radio wave absorber comprises a plurality of bodies having their bases juxtaposed in a common plane and each body (i) extends to a ridge or a point, (ii) is composed of material having a higher dielectric constant (and refractive index) than that of air, and (iii) is formed of layers each having a plurality of peaked surfaces of energy-absorbing resistive material with the peaks of those surfaces similarly directed to the above ridges or points. Absorption over both microwave and lower frequency bands is thereby afforded. In one embodiment the bodies 10, Figs. 1, 2 are juxtaposed with ridges 22 alternately perpendicular to one another; each body comprises a polystyrene surface layer 16 glued to laminated polystyrene layers 12 having cavities 14 with a resistive coating 46. Side portions 18 define a base which may be square or triangular. Bodies 10 absorb the longer wavelengths and the shorter wavelengths are absorbed by coatings 46. Surface 16 preferably follows a law y=a<SP>x</SP> where a is greater than 1À28, where y is height and x is measured from a line perpendicular to the base from the edge thereof. The preferred size of the bodies is discussed. In another embodiment the bodies are grouped in pairs of unequal heights, Figs. 4, 5 (neither shown). The bodies may be made by preparing a composition comprising a mixture of 1000 gms. of 50% solids curing type neoprene (polychloroprene) latex with 40 gms. of a 10% aqueous solution of carboxymethyl cellulose and thereafter uniformly dispersing 575 gms. of powdered synthetic graphite in the mixture, spraying that composition on to the surfaces of the recesses of cellular polystyrene layers to form a uniform coating, drying, cutting into pieces the treated layers such that the pieces overlap the desired curve y=a<SP>x</SP> and also establish the base 18, coating the faces to be joined with a 50% solids polychloroprene latex thickened with 4% of a 10% solids aqueous solution of carboxymethyl cellulose, assembling the pieces whilst the coating remains wet, standing overnight, and cutting the sides of the body to the exact desired curve. The curved surfaces of the body and one face of two cellular polystyrene sheets are coated with an aqueous resin emulsion adhesive and, after drying, the polystyrene sheets are pressed against the curved surfaces of the body to provide the smooth and dust-free covering 16. The bases of the absorbing bodies are secured to plywood boards by polychloroprene latex in the pattern, Fig. 1. A similar procedure is employed for bodies having a triangular crosssection.
Patent GB-154120-A (GB)
Title: Method of and apparatus for drying paper or other material in sheet form
IPC: D21F5/00
Filed: 1920-03-26
Abstract: 154,120. Minton, O. March 26, 1920. Drying fabrics &c. in long lengths.-Paper &c. is dried in vacuo by passage through a bath of an indifferent heating medium such as mercury or other metal. Fig. 1 shows apparatus wherein the web of paper &c. passes to and from a vacuous chamber 2 through liquid seals 3, 4 of mercury &c. and is dried in the chamber by passage through a bath of mercury &c. heated by steam pipes 12. Observation windows 17 and vacuum connexions 16 are provided. A single liquid seal may serve for entrance and exit of the material, replacing the two seals 3, 4. The rollers on which the paper &c. is carried through the bath may be of various sizes giving a greater or less smoothing effect, and may be heated internally.
Patent GB-504416-A (GB)
Title: Improvements in pivotal mountings for mirrors
IPC: A47G1/24
Filed: 1938-03-23
Abstract: 504,416. Mirror hinges. GODDARD, B. J., LEBUS, L. H., LEBUS, H. A. H., LEBUS, L. S., and LEBUS, S. H. March 23, 1938. No. 8929. [Class 65(ii)]. A dressing-table mirror 1 is hingedly mounted by means of angle plates 6 secured to the mirror which enter slots in the supporting pillars 2. The plates are slotted to pass over the hinge pins 4 and the latter are threaded so that the hinges can be clamped by means of wing- nuts 5. Side mirrors may be hinged directly to the main mirror.
Patent GB-874602-A (GB)
Title: Improvements in or relating to the production of coated materials
Inventor: CANT SYDNEY BERTRAM
IPC: B32B27/00
Filed: 1959-03-16
Abstract: 874,602. Polyurethane coatings. LINTAFOAM INDUSTRIES Ltd. March 14, 1960 [March 16, 1959], No. 9029/59. Class 140. A process for the application of a foam backing to sheet material comprises depositing on the back of said material, in a series of parallel substantially contiguous stripes, a polyurethane foam reaction mixture at a rate of 15 to 100 grams per square foot of sheet material. The stripes may be smoothed and fusion thereof facilitated by passage under a doctor device before substantial foaming occurs. The stripes may be about ¢ inch in width. The sheet material may be moved forward step by step, the stripe being laid transversely of the sheet material in the interval between successive steps by transverse reciprocation of a nozzle, which may be attached directly to a foam mixer, over the path of the sheet material, the steps being approximately equal in extent to the width of the stripes. As shown, mixer 4 mounted on carriage 3 is reciprocated on rails 2 transversely of path 1 of the sheet material to be coated. The sheet material is carried under nozzle 6 by belt 7 which is raised to an apex by roller 8 underneath the nozzle so that the polyurethane mixture discharged at a constant rate by the nozzle tends to spread. The coated sheet material passed under doctor block 9 around which endless band 10 of polythene sheet or release paper is fed at a speed equal to that of the sheet material along path 1 to smooth off stripes so as to produce a substantially uniform backing. The coated sheet material is then cured in an oven. The sheet material may be textiles, carpets, cardboard, paper, leather, leather board, or polyvinyl chloride or other plastic sheet material.
Patent GB-1451102-A (GB)
Title: Apparatus for use in evaporating liquids
IPC: B01D1/26
Filed: 1973-02-23
Abstract: 1451102 Evaporators UNITED KING- DOM ATOMIC ENERGY AUTHORITY 20 Feb 1974 [23 Feb 1973] 9136/73 Heading BIB [Also in Division F4]  An apparatus for use in a falling film evaporator (e.g. multi-effect evaporator) comprises an evaporation chamber provided with horizontal heat exchange tubes, one end of each tube protruding through an end wall of the evaporation chamber into a condensate box so that there is a gap between the tube and the end wall. The other end of each tube protrudes through the opposite end wall of the evaporation chamber into a vapour (e.g. steam) box and preferably has a gap between it and the opposite end wall. In use vapour is passed through the tubes and condenses therein as it imparts heat to a falling film of liquor. The gaps act as vents to discharge incondensible gases from the condensate formed in the tubes, into the evaporation chamber.
Patent GB-771705-A (GB)
Title: Improvements in electrical contact material and methods of making it
IPC: H01H1/023
Filed: 1955-03-29
Abstract: A silver-base alloy containing 2.5-30 per cent Fe, for use as an electrical contact material, is made by thoroughly mixing finely-divided pure silver and finely divided ferrous material, reducing the ferrous material to iron by treating the mixture at 500-550 DEG C. in an atmosphere of pure dry hydrogen, forming the treated mixture into a compact and sintering the compact at 850-900 DEG C. in an atmosphere of pure dry hydrogen.  The initial mixture may be prepared by forming a slurry of powdered silver and a solution of a soluble iron salt, e.g. a solution of silver nitrate in alcohol, and simultaneously drying and agitating the slurry.  The sintered material may be cold worked, with intermediate anneals at 850 DEG C., if necessary, into rods from which the contacts are made.
Patent GB-1031882-A (GB)
Title: Improvements in and relating to the unwinding of bobbins
IPC: B65H57/18
Filed: 1963-03-07
Abstract: 1,031,882. Unwinding from bobbins. FRANCAISE DU FERODO. S. A. March 7,1963 [March 7,1962],No.9175/63. Heading D1J. In the over end unwinding of thread from a stationary bobbin 1 the thread 3 passes over a device mounted between the bobbin 1 and a thread take up mechanism, the device including a rotatable ring carrying a guide or stop and which is caused to rotate by the engagement therewith of the thread. As shown, the device comprises a hoop 8 connected to a rotatably mounted hub portion 10 by spokes 11 and carrying a stop 13 against one face of which the thread bears in sliding relation. Various forms of guide are illustrated (Figs. 4-9 not shown). In all forms the device guides the thread outside the edge of the upper flange of the bobbin and the hoop 12 is disposed in a plane below that of said flange. The device is stated to regularise the unwinding of the yarn and the tensions imposed thereon and is therefore of particular value in the unwinding of fragile threads, such as nonreinforced asbestos yarn.
Patent GB-1204251-A (GB)
Title: Duplicating machines
IPC: B41L19/00
Filed: 1968-02-26
Abstract: 1,204,251. Printing machines. DYMO INDUSTRIES Inc. 26 Feb., 1968 [23 March, 1967], No. 9243/68. Heading B6C. The printing drum 12 of a duplicating machine is readily removed from the machine by axially disengaging frusto-conically shaped supporting members 40, 42 from similarly shaped recesses 64 formed in the ends of the cylinder. Cylinder pulley drive means 18 are associated with the supporting member 40 and the drive to the drum is effected through an axle 20, a rubber annular band 54 and a circular rubber disc 100. The supporting member 42 is axially withdrawable from the drum through the.release of a nut-like member 80 which is screw-threaded on a sleeve-bushing 74 rotatable with the member 42. Partial unscrewing of the member 80 causes disengagement of the drive means from the drum as is illustrated in Fig. 4 to allow rotary movement of the drum relative to the drive means. Complete unscrewing of the member 80 allows a spring 90 to completely withdraw the member 42 from the drum in order to allow its removal from the machine.
Patent GB-693915-A (GB)
Title: An improved method for the production of adhesive coatings on backing materials
IPC: C09J7/20
Filed: 1950-04-14
Abstract: Adhesive coatings are produced by dissolving a relatively highly polymerized polyvinyl alkyl ether having rubber-like semi-elastic properties in an oily or resinous polyvinyl alkyl ether of a lower degree of polymerization at a temperature sufficient to liquify or melt the solvent and applying the solution to a backing.  The adhesive may further comprise zinc oxide, titanium dioxide, lanolin and talc.  In examples: (1) polyvinyl isobutyl ether (molecular weight 120,000) is dissolved in polyvinyl isobutyl ether (molecular weight 45,000), heated to 100 DEG  C.; (2) polyvinyl isobutyl ether (molecular weight 105,000) is dissolved in polyvinyl isobutyl ether (molecular weight 40,000) at 110 DEG  C., and molten polyvinyl ethyl ether (molecular weight 35,000), or (3) polyvinyl sec.-butyl ether (molecular weight 40,000) is added.  Specification 640,696 is referred to.
Patent GB-186637-A (GB)
Title: Improvements in and relating to the construction of ships, floating docks, dry dock caissons, tanks, reservoirs, structural steel work and the like
IPC: B63B3/14
Filed: 1921-03-29
Abstract: 186,637. English, G. March 29, 1921. Plating.-In structural iron work and sheathing and plating for ships, docks, caissons, tanks,. &c., flats or sheets B, Fig. 1, are rolled with a recess n near the edge on one surface, and a ridge a<1> on the edge of the other surface, and united by T-shaped strips C which are heated and staved down as shown in Fig. 5. Wedges g, Fig. 1, are forced between the under side of the plates B and shoulders f on the leg of the strip C to hold the parts temporarily in position, and sections f<1>, Fig. 6, of the strip are then heated by means of a portable furnace m, having two or more heating chambers m<2>, m<3>, with non-coducting shutters to prevent the edges of the plates B from being heated. Each heated section is staved down in succession by the plunger 0<1> of a power tool 0, which is provided with jaws O<2> which grip the unheated parts f of the strip C, as shown in Fig. 3. The untreated parts f, Fig. 6, of the strip C are then heated and staved down by a modified form of tool. Alternatively the parts f may be left standing up and the spaces between the shoulders and the recesses n filled up by electric or other welding. For some purposes the connecting strip may be in short lengths and of the section as shown in Fig. 9. In this case two tiers of plates B, Fig. 10, are erected with distance pieces C<5> between the plates and spaced at intervals along the joint, and the previously heated lengths of strip C<3> passed between the plates and staved up by the power tool shown in Fig. 11. To connect the end edges of the plates, on which beaded edges cannot be rolled, the edges are flanged as shown in Fig. 12, and the corners b<1> cut off. A T-shaped connecting strip C<6>, Fig 13, is placed between the edges, temporarily wedged in position and the joint completed by electric or other welding f<4>. The side edges of plates may also be connected in this way. The beaded edged plates may be given any desired curvature in ordinary bending rolls by using flexible steel mats of the same thickness as the upstanding beads. In some cases the connecting strip C, Fig. 1, is extended to form a web. h with its edges k, k' formed of similar section to the beaded edges of the plates in order to provide attachment for a member perpendicular to the main structure, or for strengthening the construction. The Provisional Specification describes a form of connection in which the edges of the plates 0<1>, 0<2> are rolled to the section shown in Fig. 2, the web V<1> on one plate being heated in position and forced down into the form T<1> over the cheek U' on the other plate.
Patent GB-146635-A (GB)
Title: Improvements in or relating to rotary cylinder drying machines
IPC: F26B17/28
Filed: 1919-04-12
Abstract: 146,635. Simon, W. G., and Simon, F. R. April 12, 1919. Film evaporators.-In rotary-cylinder drying-machines, means for agitating and applying the material to the cylinders is provided in the liquidsupply trough B, and unheated yieldingly-mounted rollers E<1>, E<2> are used to remove surplus material from the cylinders and to spread the material in a film of uniform thickness. In twin-cylinder machines, Fig. 1, the agitator takes the form of a pulping- bar C which is caused to rise and fall by eccentrics D<2>. The rollers E<1>, E<2> are held against the cylinders with an adjustable pressure, as by springs F', F<2> and levers G<1>, G<2>. Surplus material collects in a trough K and is returned to the supply trough B. In single-cylinder machines, a roller E<3> may be used as an agitating and applying device, or a pulping-bar may operate at the lower edge of the supply trough B. Where the supply trough is below the cylinder, as shown in Fig 6, one or more rollers E<3>, E<4> act as agitating and applying devices, and the surplus material falls from the roller E' back into the supply trough.
Patent GB-1245203-A (GB)
Title: 3,4-dihydroxyphenyl-propionitrile derivatives
Inventor: KAWASHIMA HIDEAKI
IPC: C07C255/53
Filed: 1970-02-26
Abstract: 1,245,203. 3,4 - Dihydroxyphenyl propionitrile derivatives. AJINOMOTO CO. Inc. 26 Feb., 1970 [26 March, 1969; 6 Aug., 1969], No. 9464/70. Heading C2C. The invention comprises α-chloro-#-(3,4- dihydroxyphenyl) propionitrile (I) and its O- protected derivatives. They may be prepared by reacting 3,4-dihydroxybenzene or an O- protected derivative thereof with 2,3-dichloropropionitrile in the presence of a catalyst, e.g. a Lewis acid. The invention relates in particular to the compounds of formula where R<SP>1</SP> and R<SP>2</SP> are each a hydrogen atom or an alkyl cycloalkyl or acyl group or R<SP>1</SP> and R<SP>2</SP> are combined and together represent an alkylidene, cycloalkylidene group or a group of the formula or 3,4 - Dihydroxyphenylalanine may be prepared by hydrolysing, aminating and, if necessary, eliminating the O-protecting group from I or an O-protected derivative thereof.
Patent GB-541557-A (GB)
Title: Improvements in or relating to commutators for dynamo-electric machines
IPC: H01R43/08
Filed: 1940-05-30
Abstract: 541,557. Commutators for dynamo-electric machines. HOOVER, Ltd., and WILSON, C. B. May 30, 1940, No. 9499. [Class 35] In a commutator in which the segments are embedded in a moulded mass, the overhanging tongues or ribs extending inwardly from the segments are distorted so as to be not radial to the commutator rings. Figs. 2 and 3 show in longitudinal section and end view respectively a metal ring A for a commutator in which axial ribs A<SP>1</SP> formed, for example, by broaching, are deformed in opposite directions along their two halves. This may be done by two tools which are inserted at the two ends so as to engage all the ribs and then turned in opposite directions. The ring is moulded in a thermo-netting material on a hub, is then turned to a smaller diameter excepting at one end portion which is to form the risers and is finally slit to form the segments in situ. In place of using a flat bar formed into a ring before having the ribs formed inside it, the ribs may be nutted on the bar before it is bent and one or more longitudinal grooves may also be formed in the bar so as to sub-divide the ribs. Alternatively, tubular stock may be used in place of bent-up bar. The amount of distortion of the ribs may bring them approximately tangential to the shaft.
Patent GB-401952-A (GB)
Title: Improvements in or relating to steam traps or similar devices
IPC: F16T1/10
Filed: 1933-03-29
Abstract: 401,952. Steam traps. SMITH, H. A., 25, Short Street, New Cut, London. March 29, 1933, No. 9528. [Class 64 (ii).] In a steam trap of the expansible element type in which an inlet 4 is closed by a valve 7 actuated by the expansion of a volatile liquid in a jacket 12 surrounding the valve rod 8, adjustment of the expansible element in an endwise direction relatively to the casing of the trap, is effected by the rotation of a nut 18 from the exterior of the trap. The outer casing of the jacket 12 is screw-threaded to a hexagonal guide member 13, one end of which is screw-threaded into a nut 17 which may be rotated by the adjusting nut 18. A spring 20 is disposed between the latter and the nut 17, the members being kept in position by a retaining sleeve 19.
Patent GB-526971-A (GB)
Title: Improvements in or relating to telephone receivers
IPC: H04R11/00
Filed: 1939-03-27
Abstract: 526,971. Telephone receivers. MERCER, R. (Automatique Electrique de Belgique Soc. Anon. ). March 27, 1939, No. 9576. [Class 40 (iv)] In a telephone receiver, a magnetic member comprises a base part 22, Fig. 3, integral with two parallel cores 6 carrying the coils 4, Fig. 2, and with lateral lugs 19, 20 adapted to be secured by screws 2 which serve also as terminals for the electrical connections. Each screw 2 screws into an insert 14, Fig. 1, connected to a lead 13 in the handle 1. The two coils are in series. One end of the windings is connected to a lug 18 on the magnetic member, which is in contact with the screw screwed through lug 20. The other end of the windings is fitted with a washer 3 in contact with the other screw, collets 24 insulating this screw and washer 3 from the lug 19 of the magnetic member, which lug is higher than the lug 20 to allow for the collet below the lug. The magnetic member is also provided with a downward lug 21 to engage the bottom of the casing and provide mechanical support during machining. The diaphragm 12 is clamped round its edge by a ring 9 over which is screwed the cap 10 formed with holes 23.